M01, 08, 10, 15 written by Hiroyuki Sawano
M02-07, 09, 11-14, 16-22 written by KOHTA YAMAMOTO
Album was composed by Hiroyuki Sawano / KOHTA YAMAMOTO and was released on September 11, 2019. Soundtrack consists of 22 tracks tracks with duration over more than hour. Album was released by Vap.
CD 1
| 1 | 31N-M | 04:04 | |
| 2 | Voices of the Voiceless | 04:52 | |
| 3 | Alone but Together | 05:37 | |
| 4 | 日本法医学研究院Days | 02:35 | |
| 5 | 正直者と正直者 | 02:57 | |
| 6 | Listener of Truth | 03:10 | |
| 7 | Track Out the Voice | 02:57 | |
| 8 | 31N-S | 04:22 | |
| 9 | 謂れのない圧力 | 03:34 | |
| 10 | 31N-A | 03:46 | |
| 11 | Signs of Psychopathy | 03:45 | |
| 12 | Signs of Incident | 03:42 | |
| 13 | 死者との対話 | 02:39 | |
| 14 | 無言の真実 | 03:37 | |
| 15 | 31N-P | 03:59 | |
| 16 | パワハラ大王とドM弟子 | 02:41 | |
| 17 | Career×Cheeky | 02:40 | |
| 18 | 偽真者 | 03:41 | |
| 19 | 明日を照らす真実 | 03:13 | |
| 20 | やさしさの印 | 03:42 | |
| 21 | Tears in rain | 03:17 | |
| 22 | Alone but Together -カルテットVer- | 02:52 | |
